Zabbix API Errors

[ewestdal]

We currently are using Zabbix 3.0 with all server running on RHEL 6. We have 4 web servers and 1 zabbix server. A few questions on this:
1. When an API call goes to the web server does it go directly against the database or does it go to the Zabbix Server?
2. If it goes to the Zabbix server I'm assuming there is a queue of some sort that handles the requests? Does anyone have insight into this and understanding how large it is?
3. If we are getting some API failures are those logged anywhere besides in the httpd/apache logs on the web servers?

Basically I'm trying to investigate some API errors we are seeing when trying to disable specific triggers in Zabbix. Any help would be appreciated.

Thanks,
Eddie

[Atsushi]

1. The processing of the API reflects information directly from the Web server to the database.
2. The Zabbix server process does not go through.
3. It will be recorded in the web server error log. Please also check the API response.

[dimir]

If you could give an example of request/response we could try to help you.